Electroweak Gauge Boson Parton Distribution Functions
Bartosz Fornal, Aneesh V. Manohar, Wouter J. Waalewijn
TL;DR
This paper calculates electroweak gauge boson PDFs using deep-inelastic scattering data, providing initial conditions for their evolution to higher energies and presenting numerical results for various polarization states.
Contribution
It introduces a method to compute electroweak gauge boson PDFs from structure functions, extending the photon PDF approach to W and Z bosons.
Findings
Numerical results for W and Z transverse and longitudinal PDFs.
Initial conditions for electroweak PDFs at the electroweak scale.
Predictions for polarized and mixed PDFs like γZ.
Abstract
Transverse and longitudinal electroweak gauge boson parton distribution functions (PDFs) are computed in terms of deep-inelastic scattering structure functions, following the recently developed method to determine the photon PDF. The calculation provides initial conditions at the electroweak scale for PDF evolution to higher energies. Numerical results for the and transverse, longitudinal and polarized PDFs, as well as the transverse and polarized PDFs are presented.
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